package cn.ylhx.venue.common.web;

import org.apache.commons.lang3.StringUtils;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;
import org.apache.log4j.Logger;

import java.io.IOException;
import java.security.MessageDigest;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;

public class NoticeUtil {
	 Logger log = Logger.getLogger(NoticeUtil.class);

	    //发送验证码的请求路径URL
	    private static final String
	            SERVER_URL="https://api.netease.im/sms/sendcode.action";
	    //校验验证码
	    private static final String VERIFY_URL = "https://api.netease.im/sms/verifycode.action";

	    //网易云信分配的账号，请替换你在管理后台应用下申请的Appkey
	    private static final String
	            APP_KEY="bbf3dc2d344c1bca40883f740125b7cb";
	    //网易云信分配的密钥，请替换你在管理后台应用下申请的appSecret
	    private static final String APP_SECRET="6a8c58ef9c37";
	    //随机数
	    private static final String NONCE="968547";
	    //短信模板ID
	    private static final String TEMPLATEID="3063524";
	    //手机号
	    private static final String MOBILE="13715131958";
	    //验证码长度，范围4～10，默认为4
	    private static final String CODELEN="6";

	    /**
	     * 发送验证码
	     * @param moblie
	     * @return
	     */
	    public static String sendCode(String moblie){
	        return send(moblie,SERVER_URL,"");
	    }

	    /**
	     * 校验验证码
	     * @param moblie
	     * @param code
	     * @return
	     */
	    public static String validCode(String moblie,String code){
	        return send(moblie,VERIFY_URL,code);
	    }

	    private static String send(String moblie,String url,String code){
	        // 执行请求
	        HttpResponse response = null;
	        try {
	            DefaultHttpClient httpClient = new DefaultHttpClient();
	            HttpPost httpPost = new HttpPost(url);
	            String curTime = String.valueOf((new Date()).getTime() / 1000L);
	        /*
	         * 参考计算CheckSum的java代码，在上述文档的参数列表中，有CheckSum的计算文档示例
	         */
	            String checkSum = getCheckSum(APP_SECRET, NONCE, curTime);

	            // 设置请求的header
	            httpPost.addHeader("AppKey", APP_KEY);
	            httpPost.addHeader("Nonce", NONCE);
	            httpPost.addHeader("CurTime", curTime);
	            httpPost.addHeader("CheckSum", checkSum);
	            httpPost.addHeader("Content-Type", "application/x-www-form-urlencoded;charset=utf-8");

	            // 设置请求的的参数，requestBody参数
	            List<NameValuePair> nvps = new ArrayList<NameValuePair>();
	        /*
	         * 1.如果是模板短信，请注意参数mobile是有s的，详细参数配置请参考“发送模板短信文档”
	         * 2.参数格式是jsonArray的格式，例如 "['13888888888','13666666666']"
	         * 3.params是根据你模板里面有几个参数，那里面的参数也是jsonArray格式
	         */
	            nvps.add(new BasicNameValuePair("templateid", TEMPLATEID));
	            nvps.add(new BasicNameValuePair("mobile", moblie));
	            nvps.add(new BasicNameValuePair("codeLen", CODELEN));
	            if(StringUtils.isNotEmpty(code)){
	                nvps.add(new BasicNameValuePair("code", code));
	            }

	            httpPost.setEntity(new UrlEncodedFormEntity(nvps, "utf-8"));

	            // 执行请求
	            response = httpClient.execute(httpPost);
	        /*
	         * 1.打印执行结果，打印结果一般会200、315、403、404、413、414、500
	         * 2.具体的code有问题的可以参考官网的Code状态表
	         */
	            return EntityUtils.toString(response.getEntity(), "utf-8");
	        } catch (Exception e) {
	            e.printStackTrace();
	        }

	        return "";
	    }

	    // 计算并获取CheckSum
	    public static String getCheckSum(String appSecret, String nonce, String curTime) {
	        return encode("sha1", appSecret + nonce + curTime);
	    }

	    // 计算并获取md5值
	    public static String getMD5(String requestBody) {
	        return encode("md5", requestBody);
	    }

	    private static String encode(String algorithm, String value) {
	        if (value == null) {
	            return null;
	        }
	        try {
	            MessageDigest messageDigest
	                    = MessageDigest.getInstance(algorithm);
	            messageDigest.update(value.getBytes());
	            return getFormattedText(messageDigest.digest());
	        } catch (Exception e) {
	            throw new RuntimeException(e);
	        }
	    }
	    private static String getFormattedText(byte[] bytes) {
	        int len = bytes.length;
	        StringBuilder buf = new StringBuilder(len * 2);
	        for (int j = 0; j < len; j++) {
	            buf.append(HEX_DIGITS[(bytes[j] >> 4) & 0x0f]);
	            buf.append(HEX_DIGITS[bytes[j] & 0x0f]);
	        }
	        return buf.toString();
	    }
	    private static final char[] HEX_DIGITS = { '0', '1', '2', '3', '4', '5',
	            '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };

}
